Takashi Oshio< back to the list

Professor, Institute of Economic Research, Hitotsubashi University


After working for eleven years as a researcher and economist in the Japanese government and at J.P. Morgan, Takashi Oshio started his academic career from 1994 and has been serving at Hitostubashi University since 2009 as a professor at the Institute of Economic Research. He obtained a Ph. D. in international public policy from Osaka University in 2002. His research has largely focused on social security, income distribution, education policy, and other issues related to public finance. For health and medical issues, his interests are in public health, social epidemiology, and occupational health, all expected to make a great contributions through an interdisciplinary approach. He has published several journal articles in these fields and has published more than ten books in Japanese, including Welfare Analysis of Income Redistribution (2010, Nihon Hyoronsha) and Determinants of Happiness (2014, Nikkei Newspaper Press).


【Committee service, etc.】

April, 2020 - present Chairperson of Central Social Insurance Medical Council

【Recent Publications】
    • Oshio, T. and R. Nakamura, “Trends and determinants of cigarette tax increases in Japan: the role of revenue targeting,” International Journal of Environmental Research and Public Health, 19, 49892, 2022.
    • Oshio, T., K. Sugiyama, and T. Ashida, “Does residing in a neighborhood of high social participation postpone deterioration in health among middle-aged adults? A multilevel survival analysis in Japan,” Journal of Urban Health, 99(2), 235-244, 2022.
    • Shimabukuro, S., D. Daley, T. Endo, S. Harada, A.Tomoda, Y. Yamashita, T. Oshio, et al., “The effectiveness and cost-effectiveness of Well Parent Japan for Japanese mothers of children with ADHD: Protocol for a randomized controlled trial,” JMIR Research Protocols, 11(4), e32693, 2022.
    • Zhan, P., X. Ma, T. Oshio, and Y. Mao, “The elderly’s health capacity to work in China,” China Economic Journal, 15(1), 77-92, 2022.
    • Oshio, T., A. Inoue, and A. Tsutsumi, “Role ambiguity as an amplifier of the association between job stressors and workers’ psychological ill-being: evidence from an occupational survey in Japan,” Journal of Occupational Health, 63(1), e12310, 2021.
    • Sekine, Y. and T. Oshio, “Equity and efficiency in the safety net: social security law,” in Takashi Yanagawa, Hiroshi Takahashi, and Shinya Ouchi eds., Econo-Legal Studies, Springer, 121-148, 2021.
    • Oshio, T, A. Tsutsumi, and A. Inoue, “Determining whether periodic health checkups have any preventive effect on deterioration in health among middle-aged adults: A hazards model analysis in Japan,” Journal of Occupational Health, 63, e12291, 2021.
    • Oshio, T. and K. Sugiyama, "Social participation as a moderator for caregivers’ psychological distress: A dynamic panel data model analysis in Japan,” Applied Research in Quality of Life, in press.
    • Oshio, T., "Job dissatisfaction as a predictor of health deterioration among middle-aged workers: a 14-wave hazards-model analysis in Japan," Scandinavian Journal of Work, Environment & Health, 47(8), 594-599, 2021.
    • Oshio, T. and S. Shimizutani, “Will working longer enhance the health of older adults? A pooled analysis of repeated cross-sectional data in Japan,”Journal of Epidemiology, in press.
    • Oshio, T., H. Kimura, T. Nishizaki, and T. Omori, “How does area-level deprivation depress an individual’s self-rated health and life satisfaction? Evidence from a nationwide population-based survey in Japan,” BMC Public Health,21, 523, 2021.
    • Hirakawa, M., E. Usui, N. Mitsuyama, and T. Oshio, “Chances of pregnancy after dropping out from infertility treatments: evidence from a social survey in Japan,” Reproductive Medicine and Biology, 20(2), 246-252, 2021.
    • Oshio, T., “Is caring for grandchildren good for grandparents’ health? Evidence from a fourteen-wave nationwide survey in Japan,” Journal of Epidemiology, in press.
    • Okuda, M., Y. Ichida, K. Yamane, R. Ohtsuka, M. Yamaguchi, R. Goto, A. Yamada, A. Sannabe, N. Kondo, and T. Oshio, “Preferences for the forms of co-payment and advance payment in healthcare services; a discrete choice experiment,” Asian Pacific Journal of Health Economics and Policy, 2(2), 2021.
    • Oshio, T., H. Kimura, T. Nishizaki, and T. Omori, “Association between the use of social networking sites, perceived social support, and life satisfaction: evidence from a population-based survey in Japan,” PLOS ONE, 15(12), e0244199, 2020.
    • Ma, X. and T. Oshio, “The impact of social insurance on health among middle-aged and older adults in rural China: a longitudinal study using a three-wave nationwide survey,” BMC Public Health, 20, 1842, 2020.
    • Oshio, T., “Why is future design needed in Japan? Public finance perspective,” in Tatsuyoshi Saijo ed., Future Design, Springer, pp. 187-196, 2020.
    • Oshio, T., “What factors affect the evolution of the wife’s mental health after the husband’s retirement? Evidence from a population-based nationwide survey in Japan,” Journal of Epidemiology, 31(5), 308-314, 2021.
    • Oshio, T., “Association between area-level risk of job instability and workers’ health: a multi-level analysis using population-based survey data from Japan,” Journal of Epidemiology,31(3), 203-209, 2021.
    • Oshio, T., “Lingering impact of starting working life during a recession: health outcomes of survivors of the “employment ice age” (1993-2004) in Japan,” Journal of Epidemiology, 30(9), 412-419, 2020.
    • Ma, X., X. Piao, and T. Oshio, “Impact of social participation on health among middle-aged and elderly adults: evidence from longitudinal survey data in China,” BMC Public Health, 20, 502, 2020.
    • Oshio, T., S. Shimizutani, and A. S. Oishi, “Examining how elderly employment is associated with institutional disincentives in Japan,” Journal of the Japanese and International Economies, 56, 101078, 2020.
    • Oshio, T., “Exploring the health-relevant poverty line: a study using the data of 663,000 individuals in Japan,” International Journal for Equity in Health, 18:205, 2019.
    • Oshio, T., “Is a positive association between female employment and fertility still spurious in developed countries?” Demographic Research, 41, 1277-1288, 2019.
    • Oshio, T. and M. Kan, “Does social participation accelerate psychological adaptation to health shocks? Evidence from a national longitudinal survey in Japan,” Quality of Life Research, 28, 2125-2133, 2019.
    • Oshio, T. and M. Kan, “Which is riskier for mental health, living alone or not participating in any social activity? Evidence from a population-based eleven-year survey in Japan,” Social Science & Medicine, 233, 64-70, 2019.
    • Oshio, T. and M. Kan, “Educational level as a predictor of the incidences of non-communicable diseases among middle-aged Japanese: a hazards-model analysis,” BMC Public Health, 19, 852, 2019.
    • Oshio, T. and S. Shimizutani, “Health capacity to work and its long-term trend among the Japanese elderly,” Journal of the Japanese and International Economies, 51, 76-86, 2019.
    • Saito, M., N. Kondo, T. Oshio, T. Tabuchi, and K. Kondo, “Relative deprivation, poverty, and mortality in Japanese older adults: a six-year follow-up of the JAGES cohort survey,” International Journal of Environmental Research and Public Health, 16(2), 182, 2019.
    • Oshio, T. and M. Kan, “Preventive impact of social participation on the onset of non-communicable diseases among middle-aged adults: a 10-wave hazards-model analysis in Japan,” Preventive Medicine, 118, 272-278, 2019.
    • Oshio, T., “Association between successful smoking cessation and changes in marital and job status and health behaviours: evidence from a 10-wave nationwide survey in Japan,” BMC Public Health, 18:1051, 2018.
    • Oshio, T. and M. Kan, “Impact of parents’ need for care on middle-aged women's lifestyle and psychological distress: evidence from a nationwide longitudinal survey in Japan,” Health and Quality of Life Outcomes, 16:63, 2018.
    • Oshio, T., “Widening disparities in health between educational levels and their determinants in later life: evidence from a nine-year cohort study,” BMC Public Health, 18:278, 2018.
    • Oshio, T., A. Inoue, and A. Tsutsumi, “Associations among job demands and resources, work engagement, and psychological distress: fixed-effects model analysis in Japan,” Journal of Occupational Health, 60, 254-262, 2018.
    • Oshio, T. and E. Usui, “How does informal caregiving affect daughters’ employment and mental health in Japan?” Journal of the Japanese and International Economies, 49, 1-7, 2018.
    • Oshio, T., A. Inoue, A. Tsutsumi, T. Suzuki, and K. Miyaki, “The reciprocal relationship between sickness presenteeism and psychological distress in response to job stressors: evidence from a three-wave cohort study,” Journal of Occupational Health, 59, 552-561, 2017.
    • Oshio, T., A. Inoue, and A. Tsutsumi, “Examining the mediating effect of work-to-family conflict on the associations between job stressors and employee psychological distress: a prospective cohort study,” BMJ Open, 7, e015608, 2017.
    • Oshio, T. and M. Kan, “The dynamic impact of retirement on health: evidence from a nationwide ten-year panel survey in Japan,” Preventive Medicine, 100, 287-293, 2017.
    • Oshio, T., A. Inoue, and A. Tsutsumi, “Does work-to-family conflict really matter for health? Cross-sectional, prospective cohort and fixed-effects analyses,” Social Science & Medicine, 175, 36-42, 2017.
    • Oshio, T. and E. Usui, “Informal parental care and female labor supply in Japan,” Applied Economics Letters, 24(9), 635-638, 2017.
    • Oshio, T., “Which is more relevant for perceived happiness, individual-level or area-level social capital? A multilevel mediation analysis,” Journal of Happiness Studies, 18(3), 765-783, 2017.
    • Shimizutani, S. and Oshio, T., “Public pension benefits claiming behaviour: new evidence from the Japanese study on ageing and retirement,” Japanese Economic Review, 67(3), 235-256, 2016.
    • Usui, E., S. Shimizutani, and Oshio, T., “Are Japanese men of pensionable age underemployed or overemployed,” Japanese Economic Review, 67(2), 150-168, 2016.
    • Nozaki, K. and T. Oshio, “Multidimensional poverty and perceived happiness: evidence from China, Japan and Korea,” Asian Economic Journal, 30(3), 275-293, 2016.
    • Oshio, T. and M. Kan, “How do social activities mitigate informal caregivers’ psychological distress? Evidence from a nine-year panel survey in Japan,” Health and Quality of Life Outcomes, 14:117, 2016.
    • Oshio, T., A. Tsutsumi, and A. Inoue, “Can leisure-time physical activity improve health checkup results? Evidence from Japanese occupational panel data,” Journal of Occupational Health, 58(4), 354-364, 2016.
    • Shibuya, K., T. Oshio et al., “Protecting human security: Proposals for the G7 Ise-Shima Summit in Japan,” Lancet, 387(10033), 2155-2162, 2016.
    • Oshio, T. and M. Umeda, “Gender-specific linkages of parents’ childhood physical abuse and neglect with children’s problem behaviour: evidence from Japan,” BMC Public Health, 16:403, 2016.
    • Oshio, T., A. Tsutsumi, and A. Inoue, “The association between job stress and leisure-time physical inactivity adjusted for individual attributes: evidence from a Japanese occupational cohort survey,” Scandinavian Journal of Work, Environment & Health, 42(3), 228-236, 2016.
    • Oshio, T., “The association between individual-level social capital and health: cross-sectional, prospective cohort, and fixed-effects models,” Journal of Epidemiology and Community Health, 70, 25-30, 2016.
    • Umeda, M., T. Oshio, and M. Fujii, “The impact of the experience of childhood poverty on adult health-risk behaviors in Japan: a mediation analysis,” International Journal for Equity in Health, 14(145), 2015.
    • Oshio, T., “How is an informal caregiver’s psychological distress associated with prolonged caregiving? Evidence from a six-wave panel survey in Japan,” Quality of Life Research, 24(12), 2907-2915, 2015.
    • Oshio, T. and S. Inagaki, “The direct and indirect effects of initial job status on midlife psychological distress in Japan: Evidence from a mediation analysis,” Industrial Health, 53(4), 311-321, 2015.
    • Oshio, T., A. Tsutsumi, and A. Inoue, “Do time-invariant confounders explain away the association between job stress and workers’ mental health? Evidence from Japanese occupational panel data,” Social Science & Medicine, 126, 138-144, 2015.
    • Oshio, T. and M. Kan, “Multidimensional poverty and health: Evidence from a nationwide survey in Japan,” International Journal for Equity in Health, 13:128, 2014.
    • Fujii, M., T. Oshio, and S. Shimizutani, “Self-rated health status of the Japanese and Europeans in later life: Evidence from JSTAR and SHARE,” Japanese Economic Review, 65(4), 483-498, 2014.
    • Oshio, T., “The association between involvement in family caregiving and mental health among middle-aged adults in Japan,” Social Science & Medicine, 115, 121-129, 2014.
    • Oshio, T., A. Inoue, and A. Tsutsumi, “The mediating and moderating effects of workplace social capital on the associations between adverse work characteristics and psychological distress among Japanese workers,” Industrial Health, 53(4), 313-323, 2014.
Detailed profile (HRI: Hitotsubashi Researchers Information)